in Fries, Lich. Eur. Reform. (Lund): 423 (1831). Basionym: Endocarpon sommerfeltii Sommerf., Suppl. Fl. Lapp. (Oslo): 135 (1826).
Basionym: Endocarpon sommerfeltii Sommerf., Suppl. Fl. Lapp. (Oslo): 135 (1826).